1993•Rapid Communications in Mass SpectrometryRequires access

Thermal surface ionization of quaternary ammonium salts in particle‐beam mass spectrometry

R. A. M. van der Hoeven, A.P. Tinke, W.M.A. Niessen, J. van der Greef

Abstract

Abstract The applicability of thermal surface ionization in liquid chromatography/particle‐beam mass spectrometry is investigated for the analysis of quaternary ammonium compounds. The compounds are mass anlyzed in a filament‐off mode of operation with a particle‐beam interface. An intense signal of the molecular cations is observed, while fragmentation can be induced by gas collisions and characterized using tandem mass spectrometry. A significant gain in signal‐to‐noise ratio in thermal surface ionization relative to electron ionization is observed.

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Available abstract

Key concepts: Chemistry, Thermal ionization, Thermal ionization mass spectrometry, Mass spectrometry, Ionization, Chemical ionization, Electron ionization, Fragmentation (computing)